{"slug":"cronos-zkevm-rpc","title":"Fastest free Cronos zkEVM RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Cronos zkEVM endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":227.667,"leader":{"name":"Cronos (Crypto.com)","slug":"cronos-zkevm-official","value":227.667},"rankings":[{"name":"Cronos (Crypto.com)","slug":"cronos-zkevm-official","ms":{"p50":227.667,"p90":244.667,"p99":647.163,"mean":236.376},"successRate":100,"sampleSize":4317.6},{"name":"dRPC","slug":"drpc","ms":{"p50":272,"p90":352.067,"p99":774.73,"mean":317.391},"successRate":83.3913,"sampleSize":4311.6}],"sparkline":[226.228,228.786,232.144,237.533,236.336,232.419,230.185,230.616,233.903,230.475,229.828,227.083,227.221,227.634,227.464,230.174,239.931,245.864,249.504,250.66,249.222,250.199,243.914,246.843,243.833,244.283,238.678,238.393,238.792,238.785,239.814,235.725,238.201,235.615,238.551,234.175,231.408,227.563,234.593,251.1,249.906,241.285,223.969,228.299,228.933,229.298,230.855,237.237,241.5,238.893,231.628,228.29,227.072,235.821,239.179,241.243,233.667,230.993,230.36,233.964,232.015,233.568,239.89,244.401,240.893,234.901,232.349,236.54,239.682,239.867,238.161,236.234,235.945],"sampleSize":12943.800000000001,"asOf":"2026-08-08T07:03:32.548Z","headline":"Cronos (Crypto.com) leads rpc latency at 228 ms (p50, 24h) on Fastest free Cronos zkEVM RPC, live no-key endpoint latency.","quote":"Cronos (Crypto.com) leads rpc latency at 228 ms (p50, 24h) on Fastest free Cronos zkEVM RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/cronos-zkevm-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Cronos zkEVM RPC, live no-key endpoint latency\". Retrieved 2026-08-08. https://openchainbench.com/benchmarks/cronos-zkevm-rpc","bibtex":"@misc{ocb_cronos_zkevm_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Cronos zkEVM RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/cronos-zkevm-rpc},\n  note   = {Retrieved 2026-08-08}\n}","apa":"OpenChainBench. (2026). Fastest free Cronos zkEVM RPC, live no-key endpoint latency. Retrieved August 8, 2026, from https://openchainbench.com/benchmarks/cronos-zkevm-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Cronos zkEVM RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/cronos-zkevm-rpc\r\nY2  - 2026-08-08\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/cronos-zkevm-rpc","ogImage":"https://openchainbench.com/api/og/cronos-zkevm-rpc","source":"https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities","methodology":["Cadence: every 60 seconds per provider, from each of 3 probe regions (us-east Virginia, eu-west Amsterdam, sgp Singapore). Headline p50/p90/p99 aggregate across all 3 regions via Prometheus `avg(quantile_over_time(...))`; per-region breakdowns are first-class on this page via the region tabs.","Payload: `{\"jsonrpc\":\"2.0\",\"id\":<rotating>,\"method\":\"eth_getBlockByNumber\",\"params\":[\"latest\",false]}`. Plain HTTP POST, identical for every endpoint, no API key in any request.","Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms to 10 s), so percentiles are computed via Prometheus `quantile_over_time` over the last 24 hours.","Call-result classification: `ok` (HTTP 200 + non-empty result), `http_err`, `jsonrpc_err`, `stale` (more than 20 blocks behind the cross-provider tip), `timeout`.","This page is part of the per-chain RPC cluster derived from the cross-chain [rpc-capabilities](https://openchainbench.com/benchmarks/rpc-capabilities) benchmark; the identical harness, cadence and exclusion rules apply on every chain.","Chain scope: every query on this page is pinned to `chain=\"cronos-zkevm\"`. Provider coverage at launch: 3 no-key endpoints."],"license":"CC-BY-4.0"}